Winnebago County, WI Property Records
Property records in Winnebago, Wisconsin, document key details about real estate within Winnebago County, including ownership information, legal descriptions, assessed values, tax history, parcel boundaries, sales data, and recorded land documents. These records are useful for homeowners, buyers, real estate professionals, attorneys, and researchers who need to verify property ownership, review tax obligations, evaluate property value, or understand land-use history.
Users can access official records through Winnebago County’s online land and property tools, including its Winnebago property records search system. For recorded deeds, mortgages, and other land documents, users may also consult the Winnebago County Register of Deeds. Official county sources provide the most reliable and up-to-date information for property research, tax review, and public record verification.
Winnebago County, WI Property Records & Statistics
Winnebago County has a median rent of $884.50, higher than the Wisconsin median of $814 and the national figure of $840.25. Renter-occupied housing makes up 21.81% of occupied homes, above the state share of 18.62% and equal to the national share of 21.81%, which points to a somewhat larger rental market than is typical elsewhere in Wisconsin.
The median home value is $206,900, above both the state median of $194,600 and the national median of $173,750. Property taxes are also on the heavier side: the county's median property tax rate of 1.68% exceeds the state rate of 1.47% and is more than double the national rate of 0.74%. Buyers here pay more for homes than the typical Wisconsin buyer and carry a larger annual tax burden relative to value.
Incomes help offset those costs. The median household income of $69,427 is above Wisconsin's $67,963.50 and the national $65,108. The unemployment rate is just 1.2%, well below the state's 1.86% and the national 2.87%, suggesting a tight local job market.
Overall, Winnebago County combines above-average housing costs and tax rates with stronger-than-average income and very low unemployment.
Median Rent
Median Property Tax Rate
Median Home Value
Median Income
Unemployment Rate
Renter Occupied Housing
Property Records, Assessments, and Valuations in Winnebago
Winnebago County property records cover tax assessments, recorded deeds and mortgages, property valuations, and foreclosure filings. The county has 78,982 total parcels, including 60,115 residential and 4,677 commercial parcels, with tax records covering 91.47% of the population for the 2024 assessment year. The recorder holds 130,179 deed records and 99,533 mortgage records, and valuation data is available for 56,071 properties.
| Key Data | Details |
|---|---|
| Total Parcels | 78,982 |
| Residential Parcels | 60,115 |
| Commercial Parcels | 4,677 |
| Tax Record Coverage | 91.47% |
| Assessment Year | 2024 |
| Deed Records | 130,179 |
| Mortgage Records | 99,533 |
| Properties with Valuation Data | 56,071 |
| Latest Valuation Update | August 19, 2025 |
| Notice of Sale Records | 18,892 |
Assignment and Release Records
Assignment and release records track what happens to a mortgage after it is recorded. An assignment shows that a mortgage was transferred from one lender or loan holder to another, while a release shows that a mortgage was paid off and the lien removed from the property.
Winnebago County has 222,766 assignment and release records available for research. They include 21,939 assignment documents recorded from April 4, 2004, through August 28, 2025, and 200,585 release documents recorded from November 28, 2001, through August 28, 2025, along with 242 other documents.
For property research, these records help show who holds a mortgage on a property and whether earlier loans have been satisfied. Buyers, owners, and title researchers can use them to confirm that past mortgages were released, trace a loan between lenders, and spot liens that may still be open before a sale or refinance.
How to Search Winnebago County, WI Property Records
Winnebago County property records are maintained by the Register of Deeds, which records deeds, mortgages, and other real estate documents. The county has 78,982 parcels on file, along with recorded deeds, mortgages, valuation data, and foreclosure filings that can be used to confirm ownership and transaction history.
Start with the Winnebago County Register of Deeds website for office information, recording requirements, and services. To look up recorded documents online, use the Winnebago County real estate records access page, which explains how to search the county's land records.
To search, gather the property address, owner name, or parcel number. Enter the most complete details you have, review the matching documents, and open the one that fits the property you are researching. Deeds show transfers of ownership, while mortgage records show lenders and loan filings.
You can also visit the office in person at 112 Otter Avenue, Oshkosh, WI 54901, Monday through Friday, 8:00 AM to 4:30 PM, or call 920-232-3390 with questions about a record.
Winnebago Registrar of Deeds
The Winnebago County Probate Office is located at 112 Otter Avenue, Oshkosh, WI, 54901 and can be reached at 920-232-3390. Office hours are Monday-Friday 8:00 AM – 4:30 PM. Records can be accessed through co.winnebago.wi.us or the official website co.winnebago.wi.us.
Winnebago County Register of Deeds
Winnebago County Property Records FAQ
How can I search Winnebago County property records by address?
Recorded documents tied to a property can be searched through the Winnebago County real estate records access page, maintained by the Register of Deeds. Follow the search instructions there and enter as much of the address or owner name as you have. For help locating a record, call the Register of Deeds at 920-232-3390.
How can I find property owners in Winnebago County?
Ownership is shown on recorded deeds, which the Register of Deeds keeps. Use the Winnebago County real estate records access page to search by name or property, and review the most recent deed for the current owner. The office at 112 Otter Avenue, Oshkosh, can also assist in person on weekdays.
How can I check a property's assessed value in Winnebago County?
Winnebago County's tax records currently reflect the 2024 assessment year. Assessments in Wisconsin are set locally, so contact the assessor for the city, village, or town where the property sits for its assessed value. The Register of Deeds at 920-232-3390 can also point you to the right local office.
Where can I find Winnebago County property tax bills and payment records?
Tax bills are issued and collected locally, so start with the treasurer for the municipality where the property is located, or call the Register of Deeds at 920-232-3390 for direction. The county's records show a 2024 tax year, and the Register of Deeds' official website lists county contact information.
How can I find deeds and other recorded documents in Winnebago County?
Deeds, mortgages, and other recorded documents are held by the Winnebago County Register of Deeds. Search them through the real estate records access page. The office is at 112 Otter Avenue, Oshkosh, and is open Monday through Friday, 8:00 AM to 4:30 PM. Deed records in the county's data run from January 2, 2001.
Where can I access Winnebago County parcel maps and GIS information?
Parcel and mapping questions can be directed to the Register of Deeds at 920-232-3390, which can help identify the county office that maintains parcel maps. The county has 78,982 parcels, and recorded documents on the Register of Deeds website include legal descriptions that identify where a parcel lies.
How can I check permits and zoning information in Winnebago County?
Permits and zoning are generally handled by the municipality where the property is located, such as the city, village, or town office, with the county involved in some unincorporated areas. Contact that local office before building or changing a property. The Register of Deeds at 920-232-3390 can suggest where to start.
How can I create a list of property owners in Winnebago County?
The county's online tools are built for property-by-property lookups. To compile owners, search deeds on the real estate records access page for each parcel, or call the Register of Deeds at 920-232-3390 to ask whether larger record requests are available.